Cooling means for gas engines



Sept 21 1926.

P, E. MACK COOLING MEANS FOR GAS ENGINES Original Filed Odt. 24, 1921.

FIG .1

FIG. 2

WITNESSES lents.

Patented Sept. 21, 1926..

UNITED STATES I 1,600,418 PATENT OFFICE.

PERRY E. MACK, OF MILWAIIKEE, WISCONSIN, ASSIGNOR, BY LIESNE ASSIGNMENTS,

TO BRIGGS do STBA'ITON CORPORATION, OF MILWAUKEE, WISCONSIN, A GOR- IPORATION OF, DELAWARE.-

. coomivo mums iron ens nnemns.

Original application filed October 24, 1921, Serial No. 510,065. Divided and 4,1923. Serial No. 629,812.

This invention has for its object to provide an air cooling systemfor small stationary gas engines of the type usually employed for driving washing machines and other light machinery.

The invention consists of a blower formed within a fly-wheel by inwardly extending blades co-operating with a st-ationary disc set into the fl -wheel with a central opening to admit t e air to the blades and a peripheral opening in such a location as to direct the blast of air from the blades against the radiatingfi'ns alongthe engine cylinder. 1 An object of the invention is to direct a current of air from the fly wheel against the side of the engine cylinder without creating air'currents in other directions and without the use of conduits or nozzles but by merely forming a discharge opening in the station- I ary cover for the hollow fly wheel at such location as to obtain the air current directed against theside of the engine cylinder.

With the above and other objects in view the invention consists in the gas en ne cooling means as herein-claimed and a l equiva- This application constitutes a division of my application for governor and blower for gas engines, Serial No, 510,065,- filed October v Referring to the accompanying drawings,

' in-which like characters of reference indicate the same parts in diflerent views,

Fig. 1 is a side elevation of a gas engine constructed in accordance with this invention' with the fly-wheel sectioned to showthe blower blades thereof, and

Fig. 2' is a (plan view. with the fly-wheel againsectione. I v 1 In these drawings, 10 indicates a gas engine crank case mounted on a base 11, constituting the fuel reservoi'rand supporting the engine cylinder 12, which, instead of being water jacketed, is rovided with. projecting fins or ribs 13, whic are inclined in the same direction so as to be in line with a current of air created-by the blower action of one of the fly-w'heels 14.

This fly-wheel is keyed on the crank Shirt 15 and is overhung to bring the weight of its rim near the vertical plane of the bearing for the crank shaft in the crank case. Incidentally this overhanging structure of the 'this application filed April sheet metal plate or disc secured to spacing lugs on the crank case and fitting within the annular flange around the face of the flywheel. Air is free to' enter through the central opening of the air deflector or blast director,but its outlet is confined to the single :opening 18 at the edge vof the deflector, whichis so positioned as to direct the current ofeair against the cylinder in line with the ribs 13. i In operation the rapid rotation of the blower blades 16 causes them to act as fans drawing air through the central opening of stationary plate 17 and expelling it through the opemng 18, which isso positioned as to direct the blast inline with the inclined radiating fins around the engine cylinder to- -manner the cooling of the engine cylinder is accomplishedeconomically and efiiciently.

What I claim as new and desire to secure by Letters Patent is 1. In a gas engine fiy-wheel, fan blades within the rim portion thereof, and a stationary deflector plate fitting within the rim portion of the fly-wheel and having an open-' ing,through which the current of air caused by the rotating fan blades is directedaagainst the hollow face of the fly-wheel, a deflector plate mounted on the crank case and fitting within the rim of the fly wheel, with an' opening through which the current of air created by the rotating fan blades is directed against the engine cylinder, and heat radiating ribs on the engine cylinder inclined in the direction of the current of air from said opening.

3. In a gas engine, a disc secured to the crank case and spaced therefrom to provide an air passage between. them, said disc having a" central opening through which the engine crank shaft passes, and an overhung fly-wheel on the crank shaft fitting around the disk and provided with fan blades, said dis", having an opening near its edge through which said fan blades discharge the air which they draw't-ln'ough the central opening of the disc and said opening in the edge of the disc being so located as to direct the current of air against-the wall of the engine cylinder.

4. In a gas engine, a hollow fly-wheel, fan blades within I the fly-wheel, a stationary plate closing the hollow of the fly-wheel with a'central opening for admitting air to the hollow of the fly-wheel and a peripheral opening in position to direct the current of air induced by the fan blades toward the cylinder of the engine.

5. In a gas engine, a hollow fly-wheel, fan' blades within the fly-wheel, and a stationary plate fitted to the hollow face of the fly.-

wheel and the fan blades so as to prevent the escape of air held by centrifugal force vin in the path the spaces between the fan blades but provided with an opening for releasing the air only at such a position that it will be directed against the engine cylinder.

6. In a gas engine, a hollow fiy-wheel, fan blades therein, a stationary late fittin against the hollow face of the y-wheel an the-fan blades to prevent the escape of air carried by centrifugal force between said fan blades, there being a central opening in the plate for admitting air to the interior of the fly-wheel, and a peripheral opening in the plate atthat portion thereof where the fan blades move toward the engine cylinder for permitting the escape of the air while directed toward the engine cylinder.

'7. In a gas engine, a hollow fly wheel having one face closed, a stationar metal disk fitting against the open face 0 the fly wheel and provided with an opening through which is. discharged an unconfined but di reeted current of air induced by the rotation ot-the fly wheel, and an engine cylinder of the air current.

8. In a gas engine, a hollow, fly wheel having" one face closed, fan blades within the'tly wheel, a stationary inetaldisk fitting within the open face of the fly wheel and provided with an opening through which is discharged an unconfined but directed current of air induced by the rotation of the fly wheel, and an engine cylinder in the path of the air current with streamline radiating fins. I

In testimony whet-cot, I aflix my signature.

PERRY E. MACK. 

